摘要
本文在加速失效时间模型下研究了广义病例队列抽样的功效计算问题.利用光滑加权Gehan估计方程方法估计了未知回归参数,研究了固定预算下广义病例队列抽样的功效计算.模拟研究和实际数据分析评估了提出方法在有限样本下的表现.
In this paper, we study the power calculation for the generalized case-cohort sam- pling. By using the smoothed weighted Gehan estimating equation method, we obtain the unbiased estimators of the unknown regression parameters iil the accelerated failure time model. The simu- lation studies and the real data analysis show the good performances of the proposed method.
出处
《数学杂志》
2018年第2期200-208,共9页
Journal of Mathematics
基金
Supported by National Natural Science Foundation of China(11501578
11701571
11501579
41572315)
Fundamental Research Funds for the Central Universities,China University of Geosciences(Wuhan)(CUGW150809)
关键词
加速失效时间模型
广义病例队列抽样
诱导光滑
功效计算
accelerated failure time model
generalized case-cohort sampling
inducedsmooth
power calculation
